77250115 has 8 divisors (see below), whose sum is σ = 92848608. Its totient is φ = 61701120.

The previous prime is 77250083. The next prime is 77250119. The reversal of 77250115 is 51105277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77250115 - 2⁵ = 77250083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77250119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8847 + ... + 15256.

It is an arithmetic number, because the mean of its divisors is an integer number (11606076).

Almost surely, 2^77250115 is an apocalyptic number.

77250115 is a deficient number, since it is larger than the sum of its proper divisors (15598493).

77250115 is a wasteful number, since it uses less digits than its factorization.

77250115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24749.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 77250115 is about 8789.2044577425. The cubic root of 77250115 is about 425.8922247876.

The spelling of 77250115 in words is "seventy-seven million, two hundred fifty thousand, one hundred fifteen".